• {{msg}}


  • {{msg}}
2 ft x 4 ft STI SpecSeal CS Composite Sheet
2 ft x 4 ft STI SpecSeal CS Composite Sheet Add to Quote autorenew

2 ft x 4 ft STI SpecSeal CS Composite Sheet


SpecSeal Composite Sheet is the ideal solution for large openings where a permanent seal is required. Composite sheet consists of a thin sheet steel with intumescent embedded onto a single side. Composite sheet partners with other SpecSeal firestop products such as Firestop Collars and EZ Path Devices to size down oversized openings.

  • Professional fit and finish
  • Partners with other SpecSeal Firestop products
  • Easily cut with hand sheers
  • Tested for up to 4 hours of fire resistance when tested to ASTM E814/UL1479
  • Nominal thickness: 0.1 in (2.5 mm)
  • Nominal weight: 1.4 lb/sq ft (6.9 kg/sq m) intumescent
  • Expansion begins: 350°F (177°C)
  • Volume expansion: 15x (typical free expansion)
  • In service temperature: -10°F (-23°C) - 130°F (54°C)
  • Storage temperature: Less than 130°F (54°C)
  • Radiation exposure: Unaffected
  • STC rating: 55 (Relates to specific construction) (ASTM E 90-04)
  • VOC content: N/A
  • Shelf life: No limit
Code: STICS2436

For California Residents:

WARNING:Cancer and Reproductive Harm -

Need to talk to an expert to help with your next project?

Experienced and helpful customer service representatives are standing by ready to help.